Shoe



April 14, 1936. N. HACK 2,037,230

I v SHOE Fild March 25, 1955 2 Sheets-Sheet 1 April 14, 1936. N, HACK 4 2,037,230

SHOE

Eiled March 23, 1935 2 Sheets-Sheet 2 I 4 :l.l-I 73 ll 2/ I M Z// /3' U7 3/) a/ PatentedApnhM ,1936- v 3 7,23

2337,2307 W snort" I 1 Nathan Hack, Detroit, Mich. if I Application Matt 23, 1935, smart. 12, 92 Y I a I (Que-as? v invention relates toshoes and. has spe- I The upper part ll includes aperipheral rim,Q cial reference to atpneumatic treadshoe. the sid'esi5 of'which may be made in the form of 0nev important object-of the invention. to spacing strips of felt or other like yieldable' or provides. novelarrangement of shoe solevhavnon-ryieldablematerialas desired, "whilethe toe v 5 ing an air filled sac or bag-'interposedabetween portion i6-andtheiheel 'portion ll of the rim 5 the insole of the 'shoeand the tread portion of are formed of: relatively: rigidSleather spacing the sole. I a i strips of non-yieldable material. The upper edge I second importantgobject of the invention is of this rim is formed by an upper welt it to to provide an improved sole of thiskind' wherein which the shoe upperis attached. -A thin leather 1c the air sac; is supported all around by the side strip l9 covers the outsides'ofthe strips l5; I6 0 walls of a. recess formed in the upper surface of and H .tomake a finish forthe outside of the the sole. v upper section'of the sole. Any of the strips t5,

A third importantv object of the-invention is 7 l6 and il canbe'made either or yieldable or, to provide a novel shoe having an arrangement ,non-yieldable material. 'I'his stri'prlil has an of air filled sac in its sole which will eliminate uppertflange part secured below thewelt'iB. 15 V a the necessity for arch supporters and, in almost A lower flange part H is securedbetween the v all cases will eliminate the necessity of building lowerwelt 'H-and'the members l5, I6 and i1.

up shoes toineetindividual requirements due to A" filler strip- 2| is arranged between the "sole weak or flatfeet. 3 I21 and the innerpartsrof membersl5pl6. and 20 A fourth important object of the jinventionis l1. ,1 Obviously the ,various'parts of the shoe'are 20 to provide a novel'shoeof this'character adapted held. together in the usual manner, as by stitchto provide, a gentle beneficial massage and stim- 'ing or other; means such as; employed ordinarily ulation for the foot when walking. a in the construction of shoes and form no part of A fifth important-object vof the invention .this'invention.

1. V 4 toprovidea novel form of arrangement -for Itwill now 'be -pl ain that the sole, when' the 25 t expansionand contraction of the leatherior the tread section is sewed to thezupper part, is proinner-sole. ,1 v r p 7 vided'witha ecess'ln its uppe'rsurface; This With the abovegand other objects in' view, the recess is covered. by a layer 22 of cork or other invention consists in general of certain novel suitable material. In the recess 22' of the sole details of construction and combinations of parts is held a sac or bag 23 of rubber or other suit- 30 a 4 the tread layer removed.

hereinafter fully described, illustrated in the ac ablelmaterial impervious tov air and this-sac is companying drawings and specifically claimed. 7 provided witha filling valve 24 which extends In the accompanying drawings like characters fdownthrough a suitable opening in the tread ofjreference indicate like parts in the several layer I2, the opening being located just forward a views, and: J V f of the frontface orbreast of the heel. By 35 Figure 1 is a side elevation-of a shoe conmeans of the valve. the sac 23 maybe inflated -,structed in accordance with this invention. J by an ordinary tire pump. It will be observed Figure 2 is a bottomplan view of the shoe. that the rim preventslongitudinal expansion of Figure 3 is a bottom'plan view of the sole with the sac but permitsa slight lateral expansion of a 1 the sac due to the compressibility ofthe felt 40 Figure 4is a longitudinalsection of the lower sidesi5. I 1 v part of the shoe on the line 4-4 of Figure 2. Resting on the cork layer 22 is-an insole 25 of Figure 5 is a view similar to Figured but with leather or other suitable material. In order to the air sac removed. provide against warping due to expansion of the Figure 6 is an enlarged detail section of" the leather of theinnersolebecause of heat or mois- 45 lower part 01' the shoe on the line of Figture of the'foot' or of weather conditions and to ure 1. a mpermit such expansion and contraction of the a;

Figure 7 is a plan .view or the insole'removed insole as will be, necessary, the portion of the infrom the shoe. Y j 7. t sole which'liestbeneath the ball of the foot and a a In the invention as here disclosed there is from there on iorward is provided with relatively 50 shown a shoe having an upper' llifand asole large, perforations 26 and relatively small perfo- 'c'onsis'ting. iof anupper part, indicated in general rations 21. These perforations may be 'oi 'o'ne 1 at "H a tread'layer-ll provided with a. heel size if desired. The lower ends ofthese perfora- II. The tread layer i2 is =prj'vide'd' with "a .welt tions are preferably closed by a thin filter strip 28 5 M for pu poses pres ntly to be described. topreventitne corkfi igt mm P1 1 nthmush: as

the covering strips may be omitted. This insole can also be used in an ordinary shoe.

When in use, the somewhat flexible tread layer yields and transmits the pressure to the sac which, due to the compressibility of the air in said sac, absorbs the shock of walking or running just as a pneumatic tire absorbs the shock of. a wheel running 'over rough ground. Moreover. the air sac efiects a massaging of the sole of the, foot. As the heel of the foot strikes the ground, there is a compression of air in air sac which absorbs this shock and then air flows to the forward portion of the air sac, efiecting the middle or shank and forepart ofthe foot.-

There has thusbeen provided a simple and efficient device of the kind described and for the purpose specified.

It is obvious that changes may be made in the form and construction of the invention; It is not therefore desired to. confine the invention to the exact form herein described and shown but'it'is desired to include all forms covered bythe appended claims. 1

What is claimed is:-

1. A shoe having an outsole, and an insole,

:spacing strips arranged peripherally of said insole and between the insole and outsole providing a cavity therebetween, and an airfilled sac filling said cavity, said spacing strips being formed of yieldable material along the side of theinsole and outsole, and of substantially rigid material along the end portionsthereof.

'2.A shoe having an, outsole, and an insole, spacing strips arranged peripherally. of" said insole and between the'insole and outsole providing a cavity therebetween, and an air filled sac filling said cavity, and having a filling valve extending through the outsole, said spacing strips being formed of yieldable material along the side of the insole and outsole, and of substantially rigid material along the'end portions thereof.

3. A shoe having an outsole, and an insole, spacing strips arranged peripherally of said insole and between the insoleand outsole providing a cavity therebetween, and an air filled sac filling said cavity, said spacing strips being formed of felt along the sides of the insole and outsole and of leather along the end portions thereof.

4. A shoe having a heel, an outsole, and an insole, spacing strips arranged peripherally of said insole and between the insole and outsole providing a cavity therebetween, and an air filled sac filling said cavity, said spacing 6 strips being formed of yieldable material along the side of the insole and outsole, and of substantially rigid material along the-end portions thereof, and a filler valve for said sac arranged near the forward part of said heel.

5. A shoe having a heel, an outsole, and an insole, spacing strips arranged peripherally of said insole and between the insole and outsole providing a cavity therebetween, and an air filled sac filling said cavity, saidspacing strips-being formed of felt along the sides of the insole and outsole and of leather along the end portions thereof, and a filler valve for'said sac arranged near the forward part of said heel.

6. A' shoe having an outsole, and an insole, spacing strips arranged peripherally of said insole and between the insole andoutsole providing a cavity therebetween, andan air filled sac filling said cavity, said spacing strips being formed of yieldable material along the side of the insole and outsole, and of substantially rigid material along the end portions thereof, said insole including an upper layer of leather and a lower layer of cork.

7.-A shoe having an outsole, and an insole, spacing strips arranged peripherally of said insole and between the insole and outsole providing a cavity therebetween, and an air filled sac fill-'- ing said cavity, and having a filling valve extending through the outsole, said spacing strips being formed of yieldable material along the side of the insole and outsole, and of substantially rigid material along the end portions thereof, said in- NATHAN a 

